* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.header {
  background-color: pink;
  height: 80px;
  border: 1px solid yellow;
  position: relative;
  display: flex;
  align-items: center;
  padding-left: 10px;
}
.header-right {
  width: 60px;
  height: 60px;
  background-color: cyan;
  position: absolute;
  top: 10px;
  right: 10px;
}
.middle {
  display: flex;
  height: 200px;
}
.left-aside {
  width: 200px;
  background-color: pink;
  border: 1px solid yellow;
  display: flex;
  align-items: center;
  padding-left: 10px;
}
.main-section {
  flex: 1;
  background-color: pink;
  border: 1px solid yellow;
  border-left: none;
  border-right: none;
  display: flex;
  align-items: center;
  padding-left: 10px;
}
.bottom {
  background-color: pink;
  height: 80px;
  border: 1px solid yellow;
  display: flex;
  align-items: center;
  padding-left: 10px;
}